How it works

Full brief coverage, but in a thong.

The patented winged gusset provides extra surface area and absorbency where you need it most.

Multi-Layered Technology

Inside, there’s a discreet absorbent layer system built to catch leaks, not attention.

Layer 1: Moisture-Wicking Cotton Gusset

Soft and breathable, this cotton layer sits closest to your skin and draws moisture away quickly, whether it’s from sweat, periods, or a bladder leak.

Layer 2 & 3: High-Performance Absorbent Core

Underneath, a built-in absorbent layer soaks up and locks away fluid, keeping you dry and confident no matter the movement.

Layer 4: Waterproof Outer Barrier

A thin, breathable membrane prevents leaks from escaping, so nothing shows through your tights, no matter how hard you train.

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Based on 95 reviews
87%
(83)
7%
(7)
2%
(2)
2%
(2)
1%
(1)
Pee free!!!

Hi I have been so happy with these undies! Finally confidently lifting and sprinting again! Even wearing my
Electro. Blue leggings again! Yay!

Worth Every Cent!

I use mine for both CrossFit and on the golf course, and I won’t train or play without them. They’re comfortable, stay perfectly in place, and hold up through every session. The quality makes them 100% worth the cost — easily one of my best gear investments. If you're looking for a sign - HERE IT IS, buy some.

Prolapse

I bought these undies because I leak due to a prolapse after childbirth and they are amazing!!! I can wear my workout gear AND my corporate clothes with so much more confidence. I also don’t need to cross my legs in public anymore when I sneeze or cough - life changing!!!

No worries

I tired these recently and love them. I didn't worry about leakages or camel toe during workout. Would love to try the other ones.

So good!

I’m a 53-year-old woman who does HIIT workouts at least four times a week, and Double Undies have been a total game changer! They stay perfectly in place, feel comfortable even during intense sessions, and give me total confidence, no leaks, no worries. I wish I’d found them sooner. Highly recommend for any active woman!

Great product

I have been looking at these for ages and finally decided to purchase a pair. Super comfortable and makes me feel confident. I will be purchasing again.

No sweaty crotch anymore!

Had leakage the other day and was amazed how much liquid these hold! They’re a little weird when first put on but after a few minutes they feel no different to regular G. My dignity is safe and I don’t even realise I’m wearing leak proof undies. Love them.

Loooooovvve!

Kia ora! I’ve always worried about leaks during workouts and used to wear pads all the time. Since getting my Double Undies 3-pack, I finally feel confident and comfortable🙌🏽 These undies really do what they say. I’m obsessed! Thank you☺️

Love them

Really good, will definitely be buying more when they bring out the blush colour.

Thank you.

Thank you for developing such a fantastic product. Changes what I can wear to train in and stops me worrying so I can focus 100% on my workouts. Highly recommend. Cant wait to get more in the skin tone.

Sooo good!

These are very comfortable, leave no lines and caught exactly what I needed them to. No sweat patches and didn't take long to arrive. Brilliant!

Great 😃

I sweat alot and lose confidence after a hard workout because of it. Double undies are comfortable, secure and definitely help keep the sweat hidden. I feel so more confident wearing this brand of underwear....have tried many before that just doesn't stack up. Thank you 😊🙏

Great quality

Highly IMPRESSED with the quality and it is highly absorbent! I am obsessed with this product. Available in larger sizes and size true to size chart. The best on the market. - thanks Double undies team -

A
Leakproof Thong
Anonymous
Highly impressed with this thing - best on the market

Highly IMPRESSED with the quality and it is highly absorbent! I am obsessed with this product! Available in larger sizes and fits true to size description! The best on the market!!! Thanks team double undies.

Saved - these need 1000 stars

Can confidently do all the jumping exercises my trainer gives me without the fear of leakage and having to wear a surf board pad

Max your workout, worry free!

Fantastic product.. does exactly what it’s designed to do .. congratulations team 😊

Definitely 100%

Mum of 6 and got to trial out Double Undies for my recent strongwoman NZ nationals competition and they were a total game-changer. Comp days are long, intense, and full of heavy lifting, so comfort and support are everything. These undies stayed in place the whole time — no riding up, no awkward adjustments between events, just solid comfort that let me focus on my lifts.

The material felt breathable but still secure, which is huge when you’re sweating and moving under heavy weight. I especially noticed how they gave me that extra layer of confidence when bracing and lifting in front of a crowd — I didn’t have to worry about see-through moments or discomfort.

Double undies rock

Pretty happy with my new undies. Got 1 pair to try out and think I'll probably get a few more pairs. More comfortable to wear than I thought they'd be and fit true to size (im a 10-12 on bottom and got a medium). They don't have absorbency right about the back but the padding at the front is pretty solid and gives confidence.

The Best Period Thong. Period!

Not only is the fabric stretch and forgiving, it also stays put and gives ample coverage for my lady bits. The cut is perfect and accommodating for my booty/hips. I cannot express just how much I am in love with these undies! I need one in every color!

Game changer

Comfortable to wear and give you confidence to jump and skip without fear of leakage…. will be ordering again now I have tested them out and they work as described ☺️

Confidence booster!!

I’ve been struggling to lift heavy weights in fear of leakage, honestly wasn’t sure these would work for me but they’re an absolute game changer!! Gave me the confidence to lift heavy weights without the fear of leakage. Highly recommend to other women who let the fear of leakage hold them back!!

Double Undie Review (thong)

Happy with this product. I was sceptical at first but I was impressed with how well they worked. I had to visit a friend after tennis and could not change beforehand and was worried about leakage and smell, but neither were an issue. The large were a little snug but will purchase and XL. I am usually a size 14-16 undies. Thanks

So worth it!

I’ve been tossing up buying double undies for months and finally took the leap and can confirm they are an absolute game changer. They are so comfortable to wear, I feel so confident at the gym especially when lifting weights. I’m just disappointed I didn’t get a 3 pack as now I’m washing one pair daily to wear every time at the gym!

So comfy!

Just wot I needed for my workouts at F45! No more leaks on my tights, perfect.

Comfy and secure

Thort they might feel bulky. But not and so great to be a G so no lines in workout tights

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